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Wednesday, October 2, 2002 Exercise your hearing By ANDREW
WAITS
We all know that exercise is good for keeping our bodies in good shape. There is more and more evidence that exercising our ears is also good for keeping our hearing in good shape. A number of studies in the United States and England have demonstrated that individuals with hearing loss in both ears who use only one hearing aid tend to maintain or improve their ability to under stand words in the ear with the hearing aid. The ear without the hearing aid tends to decline in word recognition ability. This decline is not a change in hearing sensitivity, but rather is a decline in the ability to process the complex speech signal simply through lack of use. One theoretical explanation of this gradual decline is that the ear without the hearing aid isn't being "exercised" very much. Another explanation is that the area of the brain involved in hearing is not being used and becomes less effective at processing speech information. This gradual decline in speech recognition ability usually reverses itself once the ear gets more stimulation (normally through use of a hearing aid). Research in England suggests this process of a gradual improvement in speech understanding may take four to six weeks after the hearing aid fitting, and may continue for up to 12 weeks. What does this mean to someone with a hearing loss? Over the past 10 years, the results of a number of studies suggest the following: The longer a hearing loss is ignored, the greater the effects. The longer someone puts off using hearing aids, the likelier it is that a decline in word recognition ability will occur. The delay may also make it more difficult to adjust to hearing aids. To use the exercise analogy, if you don't exercise for 10 years, it may take longer to get back in shape. The sooner a hearing loss is treated, the easier the adjustment. If you never let your hearing get "out of shape," it's much easier to adjust to hearing "full-time." In almost all cases, two hearing aids are better than one. Two hearing aids will keep both sides of the brain actively involved in hearing. Improved hearing may take a little time. Although hearing aids provide immediate benefits, it can take 6 to 12 weeks for a hearing aid user to get the full benefits of the improved hearing provided by new hearing aids.
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